<template>
    <div id="app" name="app">
        <el-container>
            <!-- 顶部导航栏 -->
            <div class="topbar">
                <div class="nav">
                    <ul>
                        <li v-if="!$store.state.user">
                            <el-button type="text" @click="login">登录</el-button>
                            <span class="sep">|</span>
                            <el-button type="text" @click="registerClick">注册</el-button>
                        </li>
                        <li v-else>
                            欢迎
                            <el-popover
                                width="160"
                                v-model="logoutVisible">
                                <p>确定退出登录吗？</p>
                                <div style="text-align: right; margin: 0">
                                    <el-button size="mini" type="text" @click="logoutVisible = false">取消</el-button>
                                    <el-button type="primary" size="mini"  @click="logout">确定</el-button>
                                </div>
                                <el-button slot="reference" type="text">{{ userName }}</el-button>
                            </el-popover>

                        </li>

                        <li>
                            <router-link to="/orders">我的订单</router-link>
                        </li>
                        <li>
                            <router-link to="/collect">我的收藏</router-link>
                        </li>
                        <!--<li>
                            <router-link to="/shoppingCart">
                                <i class="el-icon-shopping-cart-full"></i> 购物车
                            </router-link>
                        </li>-->
                        <li @click="toShopcart" :class="getNum > 0 ? 'shopCart-full' : 'shopCart'">
                                <i class="el-icon-shopping-cart-full"></i> 购物车
                                <span class="num">({{ getNum }})</span>
                        </li>
                    </ul>
                </div>
            </div>
            <!-- 顶部导航栏END -->

            <!-- 顶栏容器 -->
            <el-header>
                <el-menu
                    :default-active="$route.path"
                    class="el-menu-demo"
                    mode="horizontal"
                    active-text-color="#409eff"
                    router
                >
                    <div class="logo">
                        <router-link to="/">
                            <img src="./assets/imgs/logo.png" alt />
                        </router-link>
                    </div>
                    <el-menu-item index="/">首页</el-menu-item>
                    <el-menu-item index="/goods">全部商品</el-menu-item>
                    <el-menu-item index="/about">关于我们</el-menu-item>

                    <div class="so">
                        <el-input placeholder="请输入搜索内容" v-model="search">
                            <el-button slot="append" icon="el-icon-search" @click="searchClick"></el-button>
                        </el-input>
                    </div>
                </el-menu>
            </el-header>
            <!-- 顶栏容器END -->

            <!-- 登录模块 -->
            <!-- 注册模块 -->
            <!-- 主要区域容器 -->
            <el-main>
                <keep-alive>
                    <router-view></router-view>
                </keep-alive>
            </el-main>
            <!-- 主要区域容器END -->

            <!-- 底栏容器 -->
            <el-footer>
                <div class="footer">
                    <div class="ng-promise-box">
                        <div class="ng-promise">
                            <p class="text">
                                <a class="icon1" href="javascript:;">7天无理由退换货</a>
                                <a class="icon2" href="javascript:;">满99元全场免邮</a>
                                <a class="icon3" style="margin-right: 0" href="javascript:;">100%品质保证</a>
                            </p>
                        </div>
                    </div>
                    <div class="github">
                        <a href="javascript:void 0" target="_blank">
                            <div class="github-but"></div>
                        </a>
                    </div>
                    <div class="mod_help">
                        <p>
                            <router-link to="/">首页</router-link>
                            <span>|</span>
                            <router-link to="/goods">全部商品</router-link>
                            <span>|</span>
                            <router-link to="/about">关于我们</router-link>
                        </p>
                        <p class="coty">商城版权所有 &copy; 2012-2021</p>
                    </div>
                </div>
            </el-footer>
            <!-- 底栏容器END -->
        </el-container>
        <register ref="register"></register>
        <login></login>
    </div>
</template>

<script>
import Register from "./components/Register"
import shoppingCartAPI from "./request/api/shoppingCartAPI";
import { mapGetters, mapActions, mapMutations } from "vuex"
export default {
    created() {
        //获取本地存储中的user信息
        let userInfo = window.localStorage.getItem("user");
        console.log(typeof userInfo);
        // window.document.cookie = "test=1111111111111"
        // console.log(window.document.cookie);
        if(userInfo){//如果这个信息存在 则证明用户已经登录过了
            //调用vuex中的setUser方法重新存储用户信息
            this.setUser(JSON.parse(userInfo));
        }
    },
    computed:{
        ...mapGetters(["userInfo","userName"])
    },
    watch:{
        userInfo(value){
            console.log("userInfo========>",value);
            if(value){
                this.getShoppingCart(value.user_id)
            }
        }
    },
    components: {
        Register
    },
    data() {
        return {
            search: "", // 搜索条件
            getNum: 0, //购物车数量
            logoutVisible: false //退出登录的小弹窗
        };
    },
    methods: {
        ...mapMutations(["setUser", "setShowLogin"]),
        //点击登录
        login() {
            // this.$refs.login.showLogin();
            console.log("点击登录");
            this.setShowLogin(true)
        },
        // 点击搜索按钮
        searchClick() {
            console.log("当前搜索的内容",this.search);
//                this.search 当前搜索的内容
            let searchStr = this.search.trim();
            this.search = "";
            if(!searchStr) return;
            this.$router.push({
                path: "/goods",
                query: {
                    search: searchStr
                }
            })
        },
        // 点击注册按钮
        registerClick() {
            console.log("点击注册按钮",this.$refs);
            this.$refs.register.showRegister();
        },
        //获取购物车信息
        async getShoppingCart(userId){
            let {data: res} = await shoppingCartAPI.getShoppingCart({user_id: userId});
            // code: "401"
            // msg: "用户没有登录，请登录后再操作"
            if(res.code !== "001"){//可能cookie过期
                //清空本地登录信息
                window.localStorage.clear();
                //清空vuex中的用信息
                this.setUser(null);
                //提示用户重新登录
                this.$notifyError(res.msg);
            }else {
                res.shoppingCartData.forEach((item)=>{
                    this.getNum += item.num
                })
                // this.setShopCart(res.shoppingCartData)
                this.$store.dispatch('setShopCart',res.shoppingCartData)
                // 将购物车的信息保存在vuex中，通过触发dispatch异步action
            }
        },
        //退出登录
        logout(){
            console.log("退出登录");
            this.logoutVisible = false; //让退出登录提示框隐藏
            //清楚vuex中的用户信息
            this.setUser(null)
            //清楚localStorage中的信息
            window.localStorage.clear();
            this.$notifySuccess("成功退出登录");
            //清空页面中的购物车信息
            this.getNum = 0
        },
        toShopcart(){
            // 跳转购物车页面
            this.$router.push('/shopcart')
        }

    }
};
</script>

<style>
/* 全局CSS */
* {
    padding: 0;
    margin: 0;
    border: 0;
    list-style: none;
}
#app .el-header {
    padding: 0;
}
#app .el-main {
    min-height: 300px;
    padding: 20px 0;
}
#app .el-footer {
    padding: 0;
}
a,
a:hover {
    text-decoration: none;
}
/* 全局CSS END */

/* 顶部导航栏CSS */
.topbar {
    height: 40px;
    background-color: #3d3d3d;
    margin-bottom: 20px;
}
.topbar .nav {
    width: 1225px;
    margin: 0 auto;
}
.topbar .nav ul {
    float: right;
}
.topbar .nav li {
    float: left;
    height: 40px;
    color: #b0b0b0;
    font-size: 14px;
    text-align: center;
    line-height: 40px;
    margin-left: 20px;
}
.topbar .nav .sep {
    color: #b0b0b0;
    font-size: 12px;
    margin: 0 5px;
}
.topbar .nav li .el-button {
    color: #b0b0b0;
}
.topbar .nav .el-button:hover {
    color: #fff;
}
.topbar .nav li a {
    color: #b0b0b0;
}
.topbar .nav a:hover {
    color: #fff;
}
.topbar .nav .shopCart {
    width: 120px;
    background: #424242;
}
.topbar .nav .shopCart:hover {
    background: #fff;
}
.topbar .nav .shopCart:hover a {
    color: #ff6700;
}
.topbar .nav .shopCart-full {
    width: 120px;
    background: #ff6700;
    color: #ffffff;
}
.topbar .nav .shopCart-full a {
    color: white;
}
/* 顶部导航栏CSS END */

/* 顶栏容器CSS */
.el-header .el-menu {
    max-width: 1225px;
    margin: 0 auto;
}
.el-header .logo {
    height: 60px;
    width: 189px;
    float: left;
    margin-right: 100px;
}
.el-header .so {
    margin-top: 10px;
    width: 300px;
    float: right;
}
/* 顶栏容器CSS END */

/* 底栏容器CSS */
.footer {
    width: 100%;
    text-align: center;
    background: #2f2f2f;
    padding-bottom: 20px;
}
.footer .ng-promise-box {
    border-bottom: 1px solid #3d3d3d;
    line-height: 145px;
}
.footer .ng-promise-box {
    margin: 0 auto;
    border-bottom: 1px solid #3d3d3d;
    line-height: 145px;
}
.footer .ng-promise-box .ng-promise p a {
    color: #fff;
    font-size: 20px;
    margin-right: 210px;
    padding-left: 44px;
    height: 40px;
    display: inline-block;
    line-height: 40px;
    text-decoration: none;
    background: url("./assets/imgs/us-icon.png") no-repeat left 0;
}
.footer .github {
    height: 50px;
    line-height: 50px;
    margin-top: 20px;
}
.footer .github .github-but {
    width: 50px;
    height: 50px;
    margin: 0 auto;
    background: url("./assets/imgs/github.png") no-repeat;
}
.footer .mod_help {
    text-align: center;
    color: #888888;
}
.footer .mod_help p {
    margin: 20px 0 16px 0;
}

.footer .mod_help p a {
    color: #888888;
    text-decoration: none;
}
.footer .mod_help p a:hover {
    color: #fff;
}
.footer .mod_help p span {
    padding: 0 22px;
}
/* 底栏容器CSS END */
</style>